Earths Magnetic Field
Studies of the seismic disc indicate that seismic waves travel fastest along a north-south axis from the southern hemisphere to Siberia (and more recently suggesting an easterly transfer to over Alaska) implying that over the the last century it appears that the earths solid core is rotating in an easterly direction. The conclusion made from this figures is that the earths solid inner core can be said to be rotating west to east at approximately 1 degree longtitude a year faster than the covering.(Song, Richards 2005) This implies then, that relative to Earths solid inner core, the mantle and the outer part of the liquid gist can be said to be moving in a westerly direction. This also implies that there must be speed gradient in the liquid core across its radius (relative to the curtain), of approximately 0 degrees/year near the mantle to 0.1 degreeslongtitude/year near the solid sum. Thus using Lenzs` law, one can predict that the larger volume of the outer part of the liquid core will induce a residual westerly electrical widely known in the inner part of the liquid core (ie the outer liquid core moves in a westerly direction relative to the inner part of the liquid core). Flemings Swiftly Hand rule predicts this westerly direction of the electrical current will in turn induce a magnetic south breadth of the land near Earths geographic North Pole. Recent experiments confirm this, in that a freely rotating liquid metal will propagate a self sustaining magnetic field without a neccesary seed magnetic field to kickstart the dynamo potency as previously thought.(Generation of a Magnetic Field by Dynamo Action in a Turbulent Flow of Liquid Sodium. R. Monchaux et al 2007). (It is also credible that the induced current would travel from core to crust or vice versa depending on how one interprets Lenz and Fleming vis a vis the circulating liquid core. However the cores change would still induce the neccesary N-S flip in this interpretation)As the seismic record shows that sound waves travel fastest across...
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